AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 87

• Manufacturer Part Number: AT91RM9200-QI-002
• Description: IC ARM9 MCU 208 PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-QI-002

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR
• Number Of I /o: 122
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: ROM
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

13.3.2
Figure 13-5. Structure of the ARM vector 6
13.3.2.1
1768I–ATARM–09-Jul-09
Structure of ARM Vector 6
Example
31
DataFlash page size
The ARM exception vector 6 is used to store information needed by the Boot ROM downloader.
This information is described below.
The first eight bits contain the number of blocks to download. The size of a block is 512 bytes,
allowing download of up to 128K bytes.
The bits 13 to 16 determine the DataFlash page number.
The last 15 bits contain the DataFlash page size.
Table 13-1.
The following vector contains the information to describe a AT45DB642 DataFlash which con-
tains 11776 bytes to download.
Vector 6 is 0x0841A017 (00001000010000011010000000010111b):
For download in the EEPROM or 8-bit external memory, only the size to be downloaded is
decoded.
Device
AT45DB011B
AT45DB021B
AT45DB041B
AT45DB081B
AT45DB161B
AT45DB321B
AT45DB642
AT45DB1282
Size to download: 0x17 * 512 bytes = 11776 bytes
Number pages (1101b): 13 ==> Number of DataFlash pages = 2
DataFlash page size(000010000100000b) = 1056
– DataFlash page number = 2
DataFlash Device
17 16
Number of
pages
128 Mbits
16 Mbits
32 Mbits
64 Mbits
Density
2 Mbits
4 Mbits
8 Mbits
1 Mbit
(Nb of pages)
13 12
Reserved
Page Size (bytes)
8
7
1056
1056
264
264
264
264
528
528
Nb of 512 bytes blocks to
download
13
AT91RM9200
= 8192
Number of pages
0
16384
1024
2048
4096
4096
8192
8192
512
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